Morphogenesis of evaporation-induced self-assemblies of polypyrrole nanoparticles dispersed in a liquid medium

被引：23
|
作者：
Jang, J
Oh, JH
机构：
[1] Seoul Natl Univ, Hyperstructured Organ Mat Res Ctr, Seoul 151742, South Korea
[2] Seoul Natl Univ, Sch Chem Engn, Seoul 151742, South Korea
来源：
LANGMUIR | 2004年 / 20卷 / 20期
关键词：
D O I：
10.1021/la049259b
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Evaporation-induced self-assemblies (EISAs) with various morphologies were selectively fabricated by drying a solution containing polypyrrole nanoparticles. The morphogenesis of EISAs was strongly dependent upon the solvent evaporation rate and the nanoparticle concentration. In the case of fast evaporation, 2-D dendrites or pseudo 1-D dendrites were observed. When the liquid medium evaporated slowly, ring and spherulitic assemblies took place. Multiple rings could be created on a substrate surface under one single drop.
引用
收藏
页码：8419 / 8422
页数：4
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